<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>css icon</title>
	<style>
		#icon {
			width: 100px;
			height: 100px;
			background: black;
			border-radius: 10px 5px 5px 30px;
		}
	</style>
</head>
<body>
	<div id="icon"></div>
</body>
</html>